Home / 209,005.20-313,347.06-103,742.52

Finding the Fourth Proportional to 209,005.20, 313,347.06 and 103,742.52

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Solution

The fourth proportional to 209,005.20, 313,347.06 and 103,742.52 is: 155,533.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,005.20 : 313,347.06 = 103,742.52 : x
  2. Step 2: Convert to fraction form
    209,005.20/313,347.06 = 103,742.52/x
  3. Step 3: Cross multiply
    209,005.20x = 313,347.06 × 103,742.52
  4. Step 4: Simplify right side
    209,005.20x = 32,507,413,638.99
  5. Step 5: Solve for x
    x = 32,507,413,638.99/209,005.20
  6. Step 6: Final answer
    x = 155,533.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.